The UK's most complete GLP-1 guide
Every Question Answered. Every Side Effect Explained.
- How GLP-1 medications work
- Mounjaro vs Wegovy compared
- Injection instructions
- Side effects & solutions
- What to eat on treatment
- FAQs answered
Free tracker included with every download this week
Height For Weight Chart — What's Healthy For Your Height?
A height for weight chart shows the healthy weight range for adults at different heights, based on BMI guidelines. In the UK, we use the NHS BMI categories to determine whether a weight is healthy for a given height. Rather than a single "ideal" weight, health guidance focuses on a healthy weight range — typically a BMI between 18.5 and 24.9. Your height significantly affects what constitutes a healthy weight, so charts help you understand the context of your own weight and whether it falls within a healthy range for your stature.
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Enter your height and weight below. Supports both imperial (stone & lbs) and metric (kg). Results include NHS category, healthy weight range, and ethnicity adjustments.
What Is BMI and Why Does It Matter?
Body Mass Index (BMI) is the most widely used screening tool for assessing whether your weight falls within a healthy range. Used by the NHS, GPs, and weight management services across the UK, BMI provides a quick snapshot of your weight relative to your height. The formula is simple: your weight in kilograms divided by your height in metres squared (kg/m²).
While BMI isn't a perfect measure — it doesn't account for muscle mass, bone density, or fat distribution — it remains the standard first step in identifying potential weight-related health risks including type 2 diabetes, cardiovascular disease, high blood pressure, and certain cancers.
The NHS also recommends adjusted thresholds for people of South Asian, Chinese, or Black African heritage — a BMI of 23 or above is classified as overweight, and 27.5 as obese. Our calculator includes this adjustment as a one-click toggle.
How Height Affects Your Healthy Weight Range
Taller people naturally weigh more than shorter people at the same BMI. This is why a single weight target doesn't work for everyone — height is built into the BMI calculation itself. BMI = weight (kg) ÷ height (m)². For example, at 5ft 8in (173cm), a healthy weight range is approximately 55–74kg (8st 8lbs to 11st 9lbs). At 5ft 4in (163cm), the healthy range is lower: approximately 49–66kg (7st 10lbs to 10st 5lbs). At 6ft 0in (183cm), it's higher: approximately 61–82kg (9st 8lbs to 12st 13lbs).
Use our free BMI calculator above to enter your actual height and weight and see exactly where you fall. The NHS also recognises that for people of South Asian, Chinese, Black African, or Black Caribbean heritage, lower BMI thresholds apply due to higher health risks at lower weights — your GP can advise on this.
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How It Works
Three simple steps to understand your weight and take action.
Enter your height and weight in our free calculator. Get your BMI, NHS category, healthy weight range, and ethnicity-adjusted thresholds instantly.
If your BMI suggests you're overweight or obese, explore our GLP-1 calculators to project potential weight loss on Mounjaro or Wegovy.
Use our progress tracker to log your weight weekly, visualise your journey with charts, and stay motivated — all stored privately in your browser.
Free Weight Loss Tools & Guides
Everything you need to understand your weight, explore medication options, and track your progress — completely free.
Using Weight Charts For Health Management
Height for weight charts are useful for understanding whether your current weight puts you at increased health risk. However, BMI alone has limitations — it doesn't distinguish between muscle and fat, so athletes may have a high BMI with low body fat. Waist measurement is also important: the NHS recommends keeping waist circumference under 94cm (37in) for men and 80cm (31.5in) for women to reduce cardiovascular risk.
If you're looking to manage your weight, track your progress with our free progress tracker, and remember that sustainable weight loss happens at approximately 0.5–1kg per week. Your GP can provide personalised weight management advice based on your individual health context and weight management goals.
- Dual GIP/GLP-1 receptor agonist
- Up to 22.5% body weight loss (SURMOUNT-1)
- Weekly injection, dose escalation over 20+ weeks
- Available via private prescription in the UK
- Doses: 2.5mg → 5mg → 7.5mg → 10mg → 12.5mg → 15mg
- GLP-1 receptor agonist
- Up to 15–17% body weight loss (STEP trials)
- Weekly injection, 5-step dose escalation
- NHS & private prescription available
- Doses: 0.25mg → 0.5mg → 1mg → 1.7mg → 2.4mg
Mounjaro vs Wegovy: Head-to-Head
A side-by-side comparison of the two most popular GLP-1 weight loss medications available in the UK.
| Feature | Mounjaro | Wegovy |
|---|---|---|
| Drug class | Dual GIP/GLP-1 agonist | GLP-1 agonist |
| Active ingredient | Tirzepatide | Semaglutide |
| Avg. weight loss | 15–22.5% | 12–17% |
| Key trial | SURMOUNT-1 (2022) | STEP 1 (2021) |
| Max dose | 15 mg weekly | 2.4 mg weekly |
| Escalation period | 20–32 weeks | 16–20 weeks |
| Administration | Weekly injection (pen) | Weekly injection (pen) |
| NHS availability | Private prescription only | NHS & private |
| Approx. private cost | £150–£250/month | £150–£300/month |
| Common side effects | Nausea, diarrhoea, constipation | Nausea, vomiting, diarrhoea |
Data sourced from SURMOUNT-1 and STEP 1 clinical trials. Costs are approximate and vary by provider. Always consult a prescriber.
Am I Eligible for Weight Loss Medication?
In the UK, eligibility for GLP-1 weight loss medications like Mounjaro and Wegovy is based on your BMI and overall health profile.
- BMI of 30 or above (obese)
- Age 18 or over
- No contraindicated conditions
- Committed to lifestyle changes
- BMI of 27 or above
- Plus type 2 diabetes
- Or high blood pressure
- Or obstructive sleep apnoea
Use our BMI calculator to check whether your BMI falls within the eligible range.
How We Built These Tools
Every calculator and guide on myweightcheck is built with accuracy and transparency in mind. Our BMI calculator uses the standard WHO formula with NHS-aligned category thresholds. Our GLP-1 projections are modelled on published clinical trial data from SURMOUNT and STEP studies.
All data stays on your device. We don't require sign-ups, and we don't store your health information on any server. Your progress tracker saves data locally in your browser using localStorage, so only you can see it.
We're based in the UK and our tools are designed specifically for UK users — supporting stone & lbs by default, referencing NHS guidelines, using NICE-approved medication data, and linking to GPhC-registered pharmacies.
Frequently Asked Questions
Common questions about BMI, weight loss medications, and our free UK tools.
What is a healthy weight for my height?
A healthy weight depends on your height and BMI. Use the BMI formula (weight in kg ÷ height in metres squared) to get a number between 18.5 and 24.9. For specific height examples: at 5ft 8in, healthy weight is roughly 55–74kg; at 5ft 4in, it's about 49–66kg. Use our free BMI calculator to find your personal range instantly.
Are height and weight charts accurate for everyone?
Charts provide useful screening information but have limitations. BMI doesn't account for muscle mass, bone density, or where fat is stored. Athletes may have high BMI but low body fat. Waist circumference and overall health context matter too. Your GP can assess whether your weight is healthy for you personally.
Do different heights require different weight loss targets?
Yes. Taller individuals generally have higher absolute weight targets within a healthy range. However, healthy weight loss rate is the same for everyone: approximately 0.5–1kg per week is sustainable. Focus on losing 5–10% of your current weight first, which can significantly improve health markers regardless of height.
What if I'm a different ethnicity — do the charts change?
The NHS recommends lower BMI thresholds for South Asian, Chinese, Black African, and Black Caribbean adults due to higher health risks at lower weights. If you fit these categories, discuss your healthy weight range with your GP rather than using standard BMI charts alone.
Can I use height and weight charts to check if I need weight management treatment?
Charts are a starting point. If your BMI is 30+ or 27+ with weight-related health conditions (type 2 diabetes, high blood pressure, sleep apnoea), you may be eligible for prescription weight management support. Your GP can assess whether treatment is appropriate and discuss options with you.
Ready to take control of your weight loss journey?
Start with a free BMI check, explore your GLP-1 options, or begin tracking your progress today. No sign-up. No cost. Just results.